Invention Grant
- Patent Title: Darkfield contamination detection
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Application No.: US16270480Application Date: 2019-02-07
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Publication No.: US10997388B2Publication Date: 2021-05-04
- Inventor: Daniela Hall , Bruno Flament , Jonathan Baudot , Etienne DeForas , Harihar Narasimha-Iyer
- Applicant: InvenSense, Inc.
- Applicant Address: US CA San Jose
- Assignee: InvenSense, Inc.
- Current Assignee: InvenSense, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06T7/00 ; G06K9/03
Abstract:
In a method for evaluating a darkfield image for contamination, it is determined whether an object is interacting with a fingerprint sensor. Provided an object is not interacting with the fingerprint sensor, a darkfield candidate image is captured at a fingerprint sensor. The darkfield candidate image is evaluated for contamination. Based on the evaluating, it is determined whether the darkfield candidate image includes contamination.
Public/Granted literature
- US20190188441A1 DARKFIELD CONTAMINATION DETECTION Public/Granted day:2019-06-20
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